From d471f1c789eccfc5aefeced2b758698c4913a16a Mon Sep 17 00:00:00 2001 From: Curtis McEnroe Date: Tue, 23 Jul 2019 00:22:05 -0400 Subject: Add beginning of date calculator --- bin/ddc.y | 213 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 213 insertions(+) create mode 100644 bin/ddc.y diff --git a/bin/ddc.y b/bin/ddc.y new file mode 100644 index 00000000..ffce22e0 --- /dev/null +++ b/bin/ddc.y @@ -0,0 +1,213 @@ +/* Copyright (C) 2019 C. McEnroe + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see . + */ + +%{ + +#include +#include +#include +#include +#include +#include +#include + +static void yyerror(const char *str); +static int yylex(void); + +#define YYSTYPE struct tm + +static struct tm normalize(struct tm date) { + time_t time = mktime(&date); + struct tm *norm = localtime(&time); + if (!norm) err(EX_OSERR, "localtime"); + return *norm; +} + +static struct tm today(void) { + time_t now = time(NULL); + struct tm *date = localtime(&now); + if (!date) err(EX_OSERR, "localtime"); + date->tm_hour = date->tm_min = date->tm_sec = 0; + return *date; +} + +static struct tm monthDay(int month, int day) { + struct tm date = today(); + date.tm_mon = month; + date.tm_mday = day; + return normalize(date); +} + +static struct tm monthDayYear(int month, int day, int year) { + struct tm date = { + .tm_mon = month, + .tm_mday = day, + .tm_year = year - 1900, + }; + return normalize(date); +} + +static struct tm weekDay(int day) { + struct tm date = today(); + date.tm_mday += day - date.tm_wday; + return normalize(date); +} + +static struct tm scalarAdd(struct tm a, struct tm b) { + a.tm_mday += b.tm_mday; + a.tm_mon += b.tm_mon; + a.tm_year += b.tm_year; + return a; +} + +static struct tm scalarSub(struct tm a, struct tm b) { + a.tm_mday -= b.tm_mday; + a.tm_mon -= b.tm_mon; + a.tm_year -= b.tm_year; + return a; +} + +static struct tm dateAdd(struct tm date, struct tm scalar) { + return normalize(scalarAdd(date, scalar)); +} + +static struct tm dateSub(struct tm date, struct tm scalar) { + return normalize(scalarSub(date, scalar)); +} + +static struct tm dateDiff(struct tm a, struct tm b) { + struct tm diff = { .tm_year = a.tm_year - b.tm_year }; + if (a.tm_mday < b.tm_mday) { + diff.tm_mon = a.tm_mon - b.tm_mon - 1; + while (dateAdd(b, diff).tm_mday != a.tm_mday) diff.tm_mday++; + } else { + diff.tm_mon = a.tm_mon - b.tm_mon; + diff.tm_mday = a.tm_mday - b.tm_mday; + } + return diff; +} + +static const char *Days[7] = { + "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", +}; + +static const char *Months[12] = { + "Jan", "Feb", "Mar", "Apr", "May", "Jun", + "Jul", "Aug", "Sep", "Oct", "Nov", "Dec", +}; + +static void printDate(struct tm date) { + printf( + "%s %s %d %d\n", + Days[date.tm_wday], Months[date.tm_mon], + date.tm_mday, 1900 + date.tm_year + ); +} + +static void printScalar(struct tm scalar) { + if (scalar.tm_year) printf("%dy ", scalar.tm_year); + if (scalar.tm_mon) printf("%dm ", scalar.tm_mon); + if (scalar.tm_mday % 7) { + printf("%dd\n", scalar.tm_mday); + } else { + printf("%dw\n", scalar.tm_mday / 7); + } +} + +%} + +%token Number Month Day +%left '+' '-' + +%% + +expr: + date { printDate($1); } + | scalar { printScalar($1); } + ; + +date: + dateSpec + | date '+' scalar { $$ = dateAdd($1, $3); } + | date '-' scalar { $$ = dateSub($1, $3); } + ; + +scalar: + scalarSpec + | scalar '+' scalar { $$ = scalarAdd($1, $3); } + | scalar '-' scalar { $$ = scalarSub($1, $3); } + | date '-' date { $$ = dateDiff($1, $3); } + ; + +dateSpec: + '.' { $$ = today(); } + | Month Number { $$ = monthDay($1.tm_mon, $2.tm_sec); } + | Month Number Number { $$ = monthDayYear($1.tm_mon, $2.tm_sec, $3.tm_sec); } + | Day { $$ = weekDay($1.tm_wday); } + ; + +scalarSpec: + Number 'd' { $$ = (struct tm) { .tm_mday = $1.tm_sec }; } + | Number 'w' { $$ = (struct tm) { .tm_mday = 7 * $1.tm_sec }; } + | Number 'm' { $$ = (struct tm) { .tm_mon = $1.tm_sec }; } + | Number 'y' { $$ = (struct tm) { .tm_year = $1.tm_sec }; } + ; + +%% + +static void yyerror(const char *str) { + warnx("%s", str); +} + +static const char *input; + +static int yylex(void) { + while (isspace(*input)) input++; + if (!*input) return EOF; + + if (isdigit(*input)) { + char *rest; + yylval.tm_sec = strtol(input, &rest, 10); + input = rest; + return Number; + } + + for (int i = 0; i < 7; ++i) { + if (strncasecmp(input, Days[i], 3)) continue; + while (isalpha(*input)) input++; + yylval.tm_wday = i; + return Day; + } + + for (int i = 0; i < 12; ++i) { + if (strncasecmp(input, Months[i], 3)) continue; + while (isalpha(*input)) input++; + yylval.tm_mon = i; + return Month; + } + + return *input++; +} + +int main(void) { + char *buf = NULL; + size_t cap = 0; + while (0 < getline(&buf, &cap, stdin)) { + input = buf; + yyparse(); + printf("\n"); + } +} -- cgit 1.4.1 oid. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Reported-by: Fydor Wire Snark <wsnark@tuta.io> 2019-02-23ui-diff,ui-tag: don't use htmlf with non-formatted stringsChris Mayo Signed-off-by: Chris Mayo <aklhfex@gmail.com> 2019-02-23ui-ssdiff: resolve HTML5 validation errorsChris Mayo - Remove ids from anchor elements. They were unusable because they were duplicated between files and versions of files. - Always close span, with html(). - Fix missing / on closing tr element in cgit_ssdiff_header_end(). Signed-off-by: Chris Mayo <aklhfex@gmail.com> 2019-01-03filters: migrate from luacrypto to luaosslJason A. Donenfeld luaossl has no upstream anymore and doesn't support OpenSSL 1.1, whereas luaossl is quite active. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> 2019-01-02ui-shared: fix broken sizeof in title setting and rewriteJason A. Donenfeld The old algorithm was totally incorrect. While we're at it, use « instead of \, since it makes more sense. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> 2018-12-09git: update to v2.20.0Christian Hesse Update to git version v2.20.0. Required changes follow upstream commits: * 00436bf1b1c2a8fe6cf5d2c2457d419d683042f4 (archive: initialize archivers earlier) * 611e42a5980a3a9f8bb3b1b49c1abde63c7a191e (xdiff: provide a separate emit callback for hunks) Signed-off-by: Christian Hesse <mail@eworm.de> 2018-11-25ui-blame: set repo for sbJason A. Donenfeld Otherwise recent git complains and crashes with: "BUG: blame.c:1787: repo is NULL". Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> 2018-11-25auth-filter: pass url with query string attachedJason A. Donenfeld Otherwise redirections come out wrong. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> 2018-11-21git: use xz compressed archive for downloadChristian Hesse Upstream will stop providing gz compressed source tarballs [0], so stop using them. [0] https://lists.zx2c4.com/pipermail/cgit/2018-November/004254.html Signed-off-by: Christian Hesse <mail@eworm.de> 2018-10-12git: update to v2.19.1Christian Hesse Update to git version v2.19.1. Required changes follow upstream commits: * commit: add repository argument to get_cached_commit_buffer (3ce85f7e5a41116145179f0fae2ce6d86558d099) * commit: add repository argument to lookup_commit_reference (2122f6754c93be8f02bfb5704ed96c88fc9837a8) * object: add repository argument to parse_object (109cd76dd3467bd05f8d2145b857006649741d5c) * tag: add repository argument to deref_tag (a74093da5ed601a09fa158e5ba6f6f14c1142a3e) * tag: add repository argument to lookup_tag (ce71efb713f97f476a2d2ab541a0c73f684a5db3) * tree: add repository argument to lookup_tree (f86bcc7b2ce6cad68ba1a48a528e380c6126705e) * archive.c: avoid access to the_index (b612ee202a48f129f81f8f6a5af6cf71d1a9caef) * for_each_*_object: move declarations to object-store.h (0889aae1cd18c1804ba01c1a4229e516dfb9fe9b) Signed-off-by: Christian Hesse <mail@eworm.de> 2018-09-11ui-ssdiff: ban strcat()Christian Hesse Git upstream bans strcat() with commit: banned.h: mark strcat() as banned 1b11b64b815db62f93a04242e4aed5687a448748 Signed-off-by: Christian Hesse <mail@eworm.de> 2018-09-11ui-ssdiff: ban strncpy()Christian Hesse Git upstream bans strncpy() with commit: banned.h: mark strncpy() as banned e488b7aba743d23b830d239dcc33d9ca0745a9ad Signed-off-by: Christian Hesse <mail@eworm.de> 2018-09-11ui-shared: ban strcat()Christian Hesse Git upstream bans strcat() with commit: banned.h: mark strcat() as banned 1b11b64b815db62f93a04242e4aed5687a448748 To avoid compiler warnings from gcc 8.1.x we get the hard way. Signed-off-by: Christian Hesse <mail@eworm.de> 2018-09-11ui-patch: ban sprintf()Christian Hesse Git upstream bans sprintf() with commit: banned.h: mark sprintf() as banned cc8fdaee1eeaf05d8dd55ff11f111b815f673c58 Signed-off-by: Christian Hesse <mail@eworm.de> 2018-09-11ui-log: ban strncpy()Christian Hesse Git upstream bans strncpy() with commit: banned.h: mark strncpy() as banned e488b7aba743d23b830d239dcc33d9ca0745a9ad Signed-off-by: Christian Hesse <mail@eworm.de> 2018-09-11ui-log: ban strcpy()Christian Hesse Git upstream bans strcpy() with commit: automatically ban strcpy() c8af66ab8ad7cd78557f0f9f5ef6a52fd46ee6dd Signed-off-by: Christian Hesse <mail@eworm.de> 2018-09-11parsing: ban sprintf()Christian Hesse Git upstream bans sprintf() with commit: banned.h: mark sprintf() as banned cc8fdaee1eeaf05d8dd55ff11f111b815f673c58 Signed-off-by: Christian Hesse <mail@eworm.de> 2018-09-11parsing: ban strncpy()Christian Hesse Git upstream bans strncpy() with commit: banned.h: mark strncpy() as banned e488b7aba743d23b830d239dcc33d9ca0745a9ad Signed-off-by: Christian Hesse <mail@eworm.de> 2018-08-28filters: generate anchor links from markdownChristian Hesse This makes the markdown filter generate anchor links for headings. Signed-off-by: Christian Hesse <mail@eworm.de> Tested-by: jean-christophe manciot <actionmystique@gmail.com> 2018-08-03Bump version.Jason A. Donenfeld Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> 2018-08-03clone: fix directory traversalJason A. Donenfeld This was introduced in the initial version of this code, way back when in 2008. $ curl http://127.0.0.1/cgit/repo/objects/?path=../../../../../../../../../etc/passwd root:x:0:0:root:/root:/bin/sh ... Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Reported-by: Jann Horn <jannh@google.com> 2018-08-03config: record repo.snapshot-prefix in the per-repo configKonstantin Ryabitsev